Anchoring device for use in connection with concrete structures.



. A. P. LOHMANN. AMIHOBING DEVICE FOR USE IN CONNECTION WITH CONCRETESTRUCTURES,

APPLIOATIO N FILED 00m, 1911. RENEWED NOV. e, 1913.

1,090,48 Patented Map n17, 19 4.

Q I lNvNTode A .h l ylless v I Q i A Atrium V. hi. m (M. BY Ci? lrrokusyiii-may concern; l-

en 'ftheUnited States, residing at M nfithe countyof Summit and StateofIOh-idylii e invented new and useful Ime a to b'e suitably positionedand-81111 edded'finthe plastic material ofwhich the u'l becomes set thedevicewill :besecurely anchored-therein. Morefspecifically,

' be embedded. in the: cementitious -material -of-"aiibuil'ding andprovided with a recess,

of'whichis greater than its width seas-s: As -shown inthe patent beforeas tioned', the walls of the recess are inclined ttoward each'f-pther tocon tit .31 w dg -i ,35 shaped abutment on-which is adapted to be of abolt,.'saidcoupling-member provided ranged to engage the inclined wallsof the recess, whereby said coupling-member; 1S wed 'ed between saidwalls when support ng an dbject and at the same time, the nut on thebolt issuitably seated-in the recess- 1n the coupling member. A furtherobject of the invention is'to form in the side walls of the device oneor more notches communicating with the recess and into which the bolt orsuspension-device carried by the coupling-member may' be swung laterallyto permit the insertion and removal of the coupling-member withoutdetaching the bolt therefrom. p

\Vith the foregoing. andpther ob ect's 1n view, the invention consistsin the novel conistruetion, combination and arrangement of m nu maHc0ircmm;fi mwa e t i ii that I, ALFRE PJLOHMA pi-ga ment inAnchoringDe-vices for Use ""iinfgonnectionwith Concretefitructureaot'which.thejfollowmg is a-speclficatlon, I

" "n forsnpportingarticles such as. -hangers ,I

f shafting'; sprinkler pi'pes, and the. l ke,;. 1n ibuildin'gseoniposedof self-hardening P1351 tic "material such as concrete, and .is of thesame general type as the device shownin then entj granted to me jMarch'-- 1, 1910,}??9'1 ding is" composed so that when the mate;

I the invention contem- Iate'sfthe -provision of amember adapted sofist-0 permit adjustment of the=position vo1? the coupling-membe whichislocated therein-and supported by'the walls of the seated acoupling-member rovided with a recess' to're'ceive-a nut on t e threadedend with diametrical opposite side faces -ar- .entlo'n to beherein-..after specificallyde'scrfbd and illustrated in the accompanyng.drawings which form apart hereof whereinis shown: the preferred.embodimentloifithe' invention," but it to 'be understood anges,variations and modificationsjcan be resortedto which come thej claimshereunto-ape gs in. which-"similar refer- ""eii cei T-iiumer'alsindicate like parts in the Stllidtlli'flifdjld -t heF' eouplingniemberposi'-' vtlonecl moperat 've relation-therewith; Fig.

4;, a; view similar to Fig. 3 'showingthepos1jt1on o fthe' partsduringthef'finsertion and 'removal' of the couplingsmembergrand, Fig. 5,"B s-" aplanofl the coupling member detached. Y 4 The bodyportiono thedevice comprises a "member 1- --'pr'efer'ably having a'-- rounded Figure1 ,is {an I end elevawas upper'surfaceat the'point 2 and-a'flat' base 3and-containing fi recessi p'rovided with a ioontracted outlet 15, formedby, the inwardly- "inchned; side walls 6' whic'h form when vassoelatedtogether a wedge-shaped: I .iabutment.

Extending transversely from the; lateral faces of-the body-portionl area pair of op-' positely disposed'lugs 7 10n=0ppos1te sides of which are:smaller lugs 8, soqas -to 0 betweenthelu-gsgz' and 8inotch's.9:for apurpose tobe later described; Communicating with the recess 4: andusually provided ,within thebo'dyflgaortion ofthe lugs 7 are notches 10outwardlysfiarin'g from the recess 4. The upperrface or wall 2 ofthedevice is provided with an upwardly-extending inverted bell-shapedintegralmember 11 preferablycontaining a recess 12 for a purpose to belater described; A 1

Mounted on the inclined faces 6 of the re- 'cess i and which constitutea wedge-shaped abutment therefor'is a coupling-member 13 I havinginclined side faces shaped to engage the inclined faces 6 of the recessand with] the ends thereof approximately verticallyformed. Thecoupling-member 13 is rovlded with a central aperture Li and ith arecess 15 surrounding said opening: and pref-.

erably square toconstitutca' sea-t for-a pur- P s b ater 'd se ji d- T,couplifigs I member -13,is further'preferably provided f-connected withthe latter by a shoulder'lf, the latter recess being shallower than there seats for'difierent sizes of nuts 18 which-'are' cementitious wallwith its lower recessedposition by hold-fast when the plastic materialbecomes hard 01' formed by either 0 the recess'es'15 or 16, and wardly.through the opening 14: whichis' of w in the recess. In doing this, thebolt 20 is ture so as to'firmly anchor the device against:

'lacin'g the'support on aitempo'rary wooden.

7 enable. theloperator 'toinsert the couphngwith a recess 16 larger thanthe recess 15 and cess 15,; The-recesses 15 and 16- in the cou''phng-member 13 'are, adapted to constitute mounted therein and which,of-co'urs'e, are provided with centrally-threaded orifices'to receivethe threaded ends 19 of hangerbolts-QO; v Q j The device is adapted tobe'mounted in a face ap ro'ximately'fiush'with the face of said we andwith its u per. bell-shaped portion 11' entirely embed ed inthestrucmovement. This is usually accomplished by oor f the form usedfor making the'ce'mem titio wall and: temporarily holding it in evicespassed through the notches '9 existing betweenthe lugs 7 and 8, afterwhich the soft las'tic -cemen'titious material is placed in the orm andcompletely incloses the device so as to support the latter solid.Afterward the floor of the 'form is removed leaving the device embeddedin the wall approximately as shown Figs. 3- an'd 4.-.- t

. The parts are assembled as follows: A nut 'of suitable size is lac'edon one oi the seats the threaded end of the bolt .passed' upsuflicientdiameter to clear the threads on the bolt and the coupling-member" 13 isinserted swung laterally into one of the notches 10 which are providedfor this purpose, that is to say,'are so formed and ositioned as tdpermitJthe-tilting of the b0 t suflieiently t6.

mem'ber13 in therecess4. As these notches 10 are provided at onepointonly in the' side} the position of the coupling-memberl3 to a pointopposite tefl one of the notches 1Q in Order, to permit-the withdrawalof the'sam e'll walls '0':- the member 1 it is necessary to shift:

When the coupling-member has been' positioned with its inclined sidefaces 'resting against the inclined side faces 6. of the recessand-which constitute a wedge shaped abutment for this purpose, the boltmay then. be

revolved to force its threaded upper endv against'the roofer upper wallof; the recess fl: and by the pressure exerted-by the engage mentbetween the nut 18and the threads on the bolt, the coupling-member 13 issecurely clamed against-longitudinal shifting, and

it wi be apparent that if it is desired to re-' move the member, thebolt '20 must be unscrewed sufiiciently to permit it to be tilted inthemanner shown in Fig. 4: which permits its ready withdrawal throughthe opening formed in the outletof the reoess.

fl claimz. p

An anchoringdevice for the purpose set forth comprising a body-portionhaving a recess formed in the lower portion thereof and provided withside walls inclined in ward toward the lower face thereof to constitutea wedge-shaped abutment, each of said side walls 'bein provided withcentrally-disposedlatera extensions arranged my hand in presence of twosubscribing wit.-

nesses. I

ALFREDP. LOHMANN.

Witnesses:

'- C. E.- HUMPHREY, A; L. McCLm'rocK.

